Hose coupling



Oct. 15, 1935.

J. F. WERDER 2,017,362

HOSE COUPLING Filed April 12, 1933 S i v M E.

n of .3, 1 v N o n I lNvz/vrag JOHN I! WERDER,

,q 1- To mwsys Patented @ct. 15, 1935 UNITED STATES PATENT? orr cs 2.01am nosr courtmo John F. Wei-Ger, Lakewood, Ohio, casinos or onehalf to Edmund Rogers, 8011! Euclid, D1110 Application April 12, 1933, Serial No. 665,786 2 iliaims. (611285-129) This invention relates to an improved form of hose coupling and the method oi making the same.

In the old and well mown form of hose conpling, as illustrated in Fig. 1 of the accompanying drawing, the I hose-attaching element 5, which is adapted to receive the end portion of the hose,is provided with an annular flange 2 which is adapted to be engaged by the inside marginal portion of the opening in the head of the nut ,3 through which the main body of the hose-attaching element i is adapted to be extended upon assembling the parts. The nut 3 is adapted for screw-thread engagement with the other attaching element ii to which another section of hose may be attached or which may constitute a nozzle for discharge or filling purposes. Between the flange 2 and the end of attaching elementd, there is provided the gasket i for sealing this connection.

With this old conventional form of coupling,

it is obvious that the opening in thehead of the nut 3 must be of sufficient size to permit extension of the hose-attaching element 8 therethrough and the main body of the nut t-must accordingly be of comparatively large size. I Not only do such large proportions in these elements require a correspondingly large quantity of material but under some circumstances, such comparatively large parts are objectionable from the I standpoint ofappearance.

The object of the present invention therefore is to provide a hose coupling in which the nut and attaching element to which the nut is threaded maybe of reduced proportions for the sake of economy of material as well as appearance, while at the same time there may be maintained the same standard or conventional size of hose-attaching element corresponding to that irdicated byreferencenumeral l in Fig. 1 of the accompanying drawing.

Another object consists in devising a convenient and efficient method of assembling and securing together the several parts involved in my new form of hose coupling in which some 01 the parts are of comparatively reduced proportions, as-

above referred to.

, Another object consists in devising such a hose coupling with some of the parts of reduced proportions and .in which at the sametime there is insured an efiective sealing engagement between the component parts of the coupling.

Other objects will appear from the following description and claims when considered together with the ace mpanying drawing.

As indicated vthe inside of the end der P is adapted to have Fig. 1 is a sectional view illustrating the old and familiar form of hose coupling upon which my present invention is an improvement;

Fig. 2 is a sectional view illustrating my inproved form of hose coupling with the parts in 5 complete assembly; and

Fig. 3 is a view mostly in section illustrating the method of assembling the several parts of my improved iorm of coupling. 7

It is to be understood that the present (115- to closure is merely for purposes of illustration and that other modifications and variations may be made without departing from the spirit of the present invention as set forth and claimed.

in Fig. 2, it will be observed that 15 the outside of the main body of the hose-attaching element I oi my improved form of coupling is 01' the same diameter as the old conventional form I illustrated in Fig. l, and that the inner diameter thereof is for the most part also of the 20 same sim as that of the old conventional form. However, in my present improved form of cou-. pling, the attaching element i is provided with a plain end portion l which is of a slightly smaller diameter than that of the opening in the nut t 25 which in my present invention is or a'substantially reduced size. It will be observed also that the outside diameter of the main body portion of the hose-attaching element F in the present case is greater than that 0! the opening in the nut 5. For this reason, as will be apparent, the nut 5 or reduced size could not be employed in connection with the old form of hose-attaching element 8 since the element i could not be extended through the reduced.size of opening in the nut in order 35 to assemble these parts. 7

As a means of enabling the reduced size of nut 5 to be assembled with the hose=attaohing element l, I have provided an intermediate connecting member which has a neck: portion 6 which 4 in the present form or illustration extends upon portion l of the hoseattaching element. In this connection, it should. be observed that the portion i of the hose-attaching element is formed with a restricted throat do which terminates in the shoulder 8. This shoulthe end portion of the neck 8 forced into locking engagement therewith, as indicated in Fig. 2, for the purpose of securing these parts in permanent assembly. The 50 neck 8 has a press fit with the throat of the hose-attaching element so as to insure a sealed connection between these parts.

The intermediate connecting member is provided at its other end with an enlarged head i $5 which has a squared shoulder 8 adapted for engagement with the end of the reduced portion I .of the hose-attaching element and for engagebut that, as before explained, the inner diameter or the restricted throat through the reduced portion I is of smaller diameter. However, with the frusto-conical seat 9 provided upon the head of the intermediate connecting member I, there is afforded an effective seating and sealing engagement since the extended surface 9 compensates for the oifset or lack of registry between the inner walls of the passages through the restricted portion I and the other attaching element II.

Preferably, the several elements comprising my improved form'of hose coupling will be formed 'of brass, although any other suitable form of metal might be employed, and according to my invention, there is provided a line-contact en--,- gagement between the edge I 0 and the frustoconical surface 9 which, by virtue of the brass or other semi-soft metal employed, results in theformation of what might be regarded as a valve seating engagement'between these parts. That is, the nature of the material employed will permit the parts to find or form their own true seat as they are drawn together for sealing engage-- ment. According to the principle of my invention, it is essential that at least one of the two parts which constitute this line-contact engagement be formed of semi-soft metal, although both of them may be formed of such metal. With this form of seating and sealing engagement, it will be seenthat I have eliminated the necessity for any gasket or other such sealing means as is usually employed.

It will be understood that when the parts have been assembled in the manner explained, the nut 5 will be retained upon the restricted portion I since the opening through the nut 5 is smaller than the main body of the hose-attaching element I and the head portion I at the intermediate connecting member. Thus, the several parts are in permanent assembly and when it is desired to attach this asanbly to the other attaching element II, this is accomplished in the familiar manner by merely screwing the nut 5 upon the threaded end portion of the element II, this engaging action being continued until there is obtained a proper sealing engagement between the frusto-conical seat 9 and the edge I0 of the attaching element I I.

The method of original assembly of the several parts of my improved hose coupling will now be briefly described with particular reference to Fig.

3 of the drawing. In the first place, the reduced end portion l of the hose-attaching element is inserted into the opening of the nut 5 and then the intermediateconnecting member is applied thereto by extending the neck portion 6 thereof with a press fit into the inside of the restricted portion l As one means for facilitating the engagement of these parts, there may be employed the anvil I 2 which has formed as an integral part porting the intermediate connecting member upon 5 the anvil in the manner indicated in Fig. 3, the hose-attaching element I maybe driven into engagement therewith so as to provide a press fit between these members as already referred to. Then, upon applying the tool II in the manner indicated in Fig. 3, with its conical end portion in engagement within the neck portion 8 of the member I, the end portion of the neck 6 can be forced into engagement over the shoulder I c by application of a hammer or the 15 like to the upper end of the'tool I4, as will be .readily understood. Then, upon removal of the tool I4 and removal of the nutS from the anvil, the assembly is complete.

As above explained, my present invention 20 makes possible a saving .in the cost of material required which means a-saving to the ultimate user. Also, as above suggested, my improved form of hose coupling contributes a much more satisfactory appearance especially to-certain in 25 hose coupling an effective sealing engagement an between the parts without'the employment of any gasketorother 'sealing' means, and there is afl'orded a free flow through my improved coupling. Since the. restricted passage through the intermediate connecting member is of only comparatively short extent, such restriction will not interfere with the flow of the fluid therethrough. Thus, while preserving all the essential requirements of an efficient hose coupling, I have made it possible toreduce the cost of material employed 4o and have also contributed to the general appearance of the coupling.

Other advantages resulting from this invention will readily suggest themselves to those who are skilled in the art to which it relates.

What I claim is:

1. A hose coupling comprising a hose-attaching element of a given size, a nut having an opening smaller than the diameter of the main body of said element, said element having a reduced 50 end portion adapted to be received within the opening of the nut and having an annular shoulder upon its inner surface, a separate intermediate connecting means having a neck of smaller diameter than that of the nut opening and hav- 55 ing apress fit engagement with the inside of the reduced end portion of said element, the end of 7 said neck having locking engagement with said shoulder so as to maintain the parts in secureassembly, said intermediate connecting mealrs 0 having .a head of larger diameter than that of the nut opening so as to be engaged by the marginal portion of the nut opening for coupling action therewith, and a companion attaching ele-.

' ment adapted for coupling engagement by said a aomasa 3 tel-mediate connecting means having a neck of smaller diameter than that of the nut opening and aflixed to the interior of said throat and having locking engagement with said shoulder,

said intermediate connecting means having a head of larger diameter than that o! the nut opening so as to be engaged by the inside mar- -ginal portion or the nut opening for coupling action therewith, and a companion attaching 10 element adapted for coupling engagement by said nut and having an annular edge at the end thereoi oi the same diameter as the interior of the main part oi said first-named hose-attaching element, and said head having a irusto-oonical surface for engagement with said annular edge so as to form a line contact engagement. at least one of the parts i'orming such line contact engagement consisting of semi-soft metal so as to produce an elective seal.

JOHN 1". WERDIR. 

